>>719090997
Turn this option on.
This will give you new scaled resolutions for your monitor.
Change your 4K screen res to one of the new resolutions you see, like 1836p or 1662p. It should look a lot better than just raw 1440p. The scaling resolution version of 1440p should be looking better anyway
Then go ingame, make sure it's using one of these scaled resolutions (borderless should also work) use medium settings and then use DLSS performance.

I don't have the game but I'm sure you can get 60fps with decent graphics using this trick.